Nighthawk Rd. over South Cottonwood River
FairPosted for loadMarion County, Kansas · 1.1S 5.0W of Marion · Structure no. 000000000570570
- Built
- 1953
- 72 years old
- Condition
- Fair
- inspected February 2025
- Type
- Tee Beam
- Concrete Continuous
- Length
- 171 ft
- 4 main spans
- Daily traffic
- 280
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Nighthawk Rd. over South Cottonwood River is a concrete continuous tee beam carrying Nighthawk Rd. over South Cottonwood River in Marion County, Kansas. It was built in 1953, so it is 72 years old, older than the Kansas average of 52.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 280 vehicles a day, roughly 10% of them trucks, projected to reach 320 by 2045. The structure is 171 ft (52 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nighthawk Rd. over South Cottonwood River built?
It was built in 1953, making it 72 years old in 2025.
What condition is Nighthawk Rd. over South Cottonwood River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.
How much traffic does Nighthawk Rd. over South Cottonwood River carry?
About 280 vehicles per day (2019 count), of which roughly 10% are trucks.
How long is Nighthawk Rd. over South Cottonwood River?
The structure is 171 ft (52 m) long with a longest span of 49 ft (14.9 m) and a deck 25 ft wide.
Who owns Nighthawk Rd. over South Cottonwood River?
It is owned by the County Highway Agency.